Menu Healthy Lifestyle Diseases & Conditions First Aid Symptoms Tests & Procedures Videos Definitions FAQs TaeniasisUpdated: 2019-10-19OverviewTaeniasis is caused by eating undercooked beef or pork that contains tapeworm eggs. SymptomsSymptoms may include belly pain, lost appetite, weight loss and upset stomach. Tapeworm segments may be visible as they pass through the anus and in the feces. TreatmentsMedications are used to treat taeniasis. Cooking meat to safe temperatures prevents the illness. Access to improved sanitation also is key. © 1998-2022 Mayo Foundation for Medical Education and Research(MFMER). All rights reserved. Terms of Use